harry potter. you don't even have to see them. you know their music composed by john williams, the most oscar-nominated man alive. >> he is an old friend and had a courtship since the 1970s. >> what made it a good tool for me, the two notes could be played note, note, or very fast. very soft or very loud and in your face. >> two notes in jaws and five notes in close encounters. >> those five notes. it's where william soared. they are the best selling for all time and still celebrated. >> it's a wonderful sight awaiting these light sabers. you couldn't plan it. you couldn't say i'm going to write something and 30 years from now people will be celebrating in some fashion. impossible. >> the-time oscar winner credits hard work and the fortune of a good friend. a 40-year partnership with steven spielberg that persevered when he felt he couldn't match his work in schindler's list. >> said yes, i know, but they are all dead. >> how do you keep the energy, the creative juices going? >> it's better not to keep your eye on the finish line